Tag: food

Discontinued: Oxbow Papaya Fruit Plus Tablets

EDIT July 2018
Oxbow have re-released these and they are now available again.

 

For many years, rabbit owners have been giving the Oxbow Papaya Fruit Plus tablets to their rabbits to help prevent hairball build up. Although, not scientifically proven to help, the anecdotal evidence and owner testimonials are overwhelming with positive results.

These little tablets contain the active enzymes Papain and Bromelain. These enzymes are thought to break down some of the mucus in the gut. They do not break down the fur itself. It is the mucus that binds the fur together inside the gut and this causes the faeces to get clogged with too much hair. This can show as mis-shapen poops or, if particularly bad, will look like  a string of pearls. These are very hard for the rabbit to pass naturally and can cause a gut slow down or blockage resulting in an emergency situation.

String of Pearls Faeces

String of Pearls Faeces

Unfortunately – Oxbow decided to discontinue these tablets on 1st September 2014 and they have not produced a direct replacement (There are a few still available on Amazon). They now offer the Oxbow Natural Science Digestive Support Supplement which is great…but has not active enzymes in it so is no use for hairball prevention.

But there is another way….
As always, lots of fluids are needed to help a rabbit whilst it is moulting, along with daily grooming. The best brush for rabbits is the cat zoom groom by Kong. It is soft and rubbery so does not hurt or damage the skin like slicker brushes and combs can do. Feed the rabbits their fresh greens / herbs soaking wet as this helps to get more fluids in as well.

Pro C by Vetark is a fabulous product that can be added to the drinking water daily. It contains probiotics that help the gut cope and also extra vitamin C. Rabbits metabolise more vitamin C when they are stressed and moulting is a stressful time. This helps the entire rabbits system cope a bit better during the moult. It can turn the water a shade of green so don’t worry if this happens. Use for a 5-10 day course. This is generally a product that I would always recommend to keep in the cupboard for use at any times of stress of illness.

I have searched around for an alternative enzymatic product and found something that may work. It is a Bromelain supplement called ‘Natures Own’ with no added nasties in it. Each tablet contains 100mg of Bromelain. The Oxbow tablets contained 23mg of Bromelain as well as 2.9mg of Papain and 1-2 tablets could be given daily. This means, if using these ‘new’ Bromelain tablets that are 100mg…you can cut them into quarters thus feeding 25mg per quarter. This can be given as a daily dose and increased to half a tablet (50mg) per day for when the rabbit is moulting.

I MUST stress that I have not tested these tablets in rabbits – but have been looking for an alternative that is as close to the Oxbow tablets as possible. This recommendation is purely based on the fact that these new tablets contain Bromelain in a sufficient dose that almost matches the Oxbow tablets. It is not an exact replacement. You can always discuss this with your vet before use and always stop if any tummy upsets occur.

I would be very interested to hear from anyone does choose to use these and if you notice any improvements.

 

 

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Flystrike: Know how to keep your rabbit safe

Flies are not just a buzzy pest….they can cause serious damage to your bunnies!

 

RWAF Flystrike Poster

RWAF Flystrike Poster

Fly strike is also known as Myiasis and is defined as “the presence of larvae of dipterous flies in tissues and organs of the living animal, and the tissue destruction and disorders resulting there from” (Boden, 2001). All very scientific…but basically, flies can lay eggs on bunnies and these quickly hatch out into maggots which eat the bunnies skin and organs 🙁

Initially, rabbits can hide fly strike quite well as the eggs and maggots are usually buried deep in the fur. “Bluebottles (Calliphora) and greenbottles (Lucilla) are attracted to soiled fur or infected skin to lay their eggs” (Harcourt Brown, 2002). The most common site for this to happen is around the rabbit’s anus and scent glands. A rabbit that is overweight, unwell or suffers from joint problems will struggle to keep this area clean. This can then lead to the fur being matted with urine and faeces, which attracts the flies. The eggs that are laid will hatch into larvae (maggots) in approximately 12 hours and will start feeding on external debris. Once this has been consumed, the maggots will continue to eat sound skin and tissue, often tunnelling under the skin layers. Aberrant migration brings the maggots deep under the rabbit’s skin, infiltrating vital organs and can even occlude the rabbit’s airway. This is very uncomfortable for the rabbit and will progressively get more painful as the condition progresses. Initially the rabbit will be very restless, however as time goes on it will become unwell, inappetent and lethargic.

The combination of the sore skin and the maggots creates a very pungent ammonia smell. This is because the maggots release proteolytic enzymes into the tissues to cause cell death and decomposition. These toxins can cause serious shock, septicaemia and if left untreated, will often be fatal.

For treatment to be successful, the rabbit needs to be seen by a Veterinarian as soon as possible. Depending on the severity of the case, the rabbit may have to be hospitalised for intensive therapy and monitoring for a few days. Rapid removal of the eggs and maggots is imperative to stop any further damage. This can be done by shaving the fur off the affected areas and then carefully using forceps to remove the contamination. This can be very time consuming and will need to be repeated a few times to ensure all of the eggs and maggots have been removed. The skin needs to be flushed and cleaned with a sterile saline solution and an antiseptic solution (such as povodine-iodine) and any wounds will need flushing and exploring to make sure that they are also clear of contamination. Non-steroidal pain relief and fluid therapy are vital to help the rabbit combat shock.  Not all patients will be well enough to endure a sedation or anaesthetic at this point so care needs to be taken and close monitoring performed. The rabbit will need to be dried well and placed in a clean, warm and quiet area. Sometimes the use of topical creams like Dermasol (by Pfizer) is advised as it promotes healing of areas impaired by the presence of necrotic tissue because it activates the sloughing of devitalised tissue. Intensive nursing will also be vital to the success of the treatment. The rabbit will need regular syringe feeding, medicating and cleaning along with trying to keep its environment warm and as stress free as possible. F10 wound spray with insecticide can be used on the area – helping the wound and protecting from further fly problems too. This can be used daily and is good for disabled rabbits that need daily clean ups (thus washing off any Rearguard etc).

If there is a heavy maggot burden, injections of Ivermectin can be given to kill the maggots but the patient must be very closely monitored as the dying larvae excrete toxins that can be fatal. The final treatment option is surgery for when the maggots have migrated far under the skin. However, such a heavy burden does not have a good prognosis and often euthanasia is the kindest option for severe cases.

WARNING! F10 wound spray is TOXIC to cats. Do NOT use on cats or in households where cats and rabbits have direct contact.

As always, prevention is better than cure and there are a number of things that owners can do to help reduce the risks. Owner awareness of fly strike is vital and they must be able to recognize the signs and know that this is an emergency that needs Veterinary attention as soon as possible.

In general, it is very important that the rabbit is kept in good physical condition. This means that it is fed a balanced diet consisting mainly of good quality hays with a small amount of commercial rabbit pellet and fresh vegetables and herbs. By feeding the correct diet, it reduces the risk of the rabbit becoming overweight and also reduces the risk of over producing caecotrophs which get stuck around the anus. Rabbits that are very young, very old or have health problems such as dental, gut or paralysis issues are more susceptible to fly strike.

Next, it is important that the rabbit is kept in clean, spacious living conditions. Any build up of urine or faeces will attract flies. The rabbit should also have plenty of space to move around and exercise away from its toileting area and uneaten fresh vegetables etc should be removed daily. If housed outdoors, mosquito netting can be used over the hutch and run areas to help reduce the amount of flies that can enter the area. It can also be attached to windows / door areas too. Sticky fly paper can be used outside the hutch but never in an area that the rabbit has access to as it can stick to them and cause terrible damage. If the rabbit is housed indoors, an electric insect killer can be used in the same room as the rabbit is housed and net curtains can be used in the windows to reduce the amount of flies entering the room.

Lastly, a topical treatment can be applied to the rabbit to help prevent fly strike. F10 wound spray with insecticide and Rearguard are examples of these topical treatments. F10 wound spray needs to be applied weekly to the rump and genital area. It is TOXIC to cats so don’t use on cats or in households where the cats and rabbits interact.

The main ingredient in Rearguard is Cyromazine (an insect growth regulator). It is recommended by many Veterinary practices and is widely available in pet shops and online. It should be applied at the start of summer before any flies are seen and gives approximately 8-10 weeks of protection. This product does not repel flies or kill maggots but works by preventing any eggs laid on the rabbit from hatching into maggots. Rearguard can also be applied on rabbits that have been successfully treated for fly strike to help prevent re-occurrence.

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APPLYING REARGUARD
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The bottle comes with a sponge applicator but I find this often has a sharp spike in the middle. So I wear a pair of disposable latex / nylon gloves and apply the liquid to my hands. I then rub this into the rabbits fur from the middle of the back to the tail and the same on the underside. Its important to get the fur quite wet and apply well around the back legs and genitals.

DO NOT APPLY TO SORE OR BROKEN SKIN.

The bottle says to use the whole bottle per rabbit but I have found that you can often get 2-3 applications out of one bottle for small / medium bunnies. As long as the target area is covered and the fur quite wet then this should be fine.

Re-apply every 8-10 weeks.

 

See here for more info (WARNING! some contain graphic images):

Rabbit Welfare Association and Fund

House Rabbit Society

Medirabbit

Saveafluff

 

 

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NEW Slim Size Microchip

Bayer Slim Microchip

Bayer Slim Microchip

Bayer have announced the release of a NEW Tracer microchip that is smaller than the existing one. The implanter needle has also been reduced in diameter.

Personally, in my job as a Veterinary Nurse, I have never had a problem placing a normal sized microchip into any cat / dog / rabbit / guinea pig or tortoise – however, I have experienced a lot of anxiety and resistance from the owners of the animals. They think that the procedure to place the microchip (just an injection) will really hurt the animal. If the injection is carried out correctly this is not usually the case. Occasionally the injection site can bleed a little (always seems to be the white coloured animals as it looks worse!) but most animals have an area of skin that is quite loose and baggy with minimal nerve endings – meaning its quick and easy to place the microchip with minimum discomfort.

As micro chipping is such an important thing to do, then I’m happy to see any new products and initiatives that can help keep animals safe, identifiable and more easily reunited with their loved ones.

There are also other good reasons for micro chipping that can make your life easier as a pet owner! Sureflap are makers of a cat flap that will only open for a specific pet. The cat flap scans the cats microchip and only opens when a pre programmed match is found. This can stop other cats entering your property and causing havoc with your current pets.

The same company are also developing a feeding bowl (Surefeed) that works on the same principle. This means that it would be easier to feed your pets a prescription diet / medication etc in a multi pet house hold as the bowl will only allow access to the ‘chosen’ pet. This should be available from Summer 2014.

Read the full  Vetsonline article here:
Slim Bayer Tracer Microchip

 

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Whats in a pellet food?

So…firstly its important to NEVER feed a muesli mix style of food as this has been scientifically proven to cause selective feeding, dental and digestive issues. It is also chocked full of sugary stuff and grains that rabbits don’t need in their diet.

But this then leaves us in the sometimes bewildering world of pellets. Which brand? Do I choose the cheapest? Are they all the same anyway?

In general, as with the rest of life, you get what you pay for. In my opinion, Supreme Science Selective are the best extruded pellet available in the UK (Oxbow pellets for people in the USA). They have the highest crude fibre content and no added sugar – along with the correct ratios and percentages of other vitamins and nutrients. A close second is Burgess Excel Adult LIGHT. I specify the light version as this has no added sugar (unlike the regular adult version). The other great thing about these two brands is they offer a life stage option. Basically, rabbits over 4 years old should be fed a ‘mature’ version of the diet which has the percentages and ratios changed to better suit an ageing rabbits needs.

Oh and beware of the term ‘beneficial fibre’…this is a marketing term that makes the fibre content look higher than it is! Its always the crude fibre content that’s important.

At the lower end of the market (and diets I would not recommend) we have Allen & Page and Dodson & Horrell. These were born out of ‘breeder pellets’ and are generally low quality. They are lacking in essential vitamins and the pellet itself does not work the teeth as well as an ‘extruded’ pellet (like the above 2 examples).

For a more detailed comparison – check out this brilliant pellet food comparison table.

As always, the pellet part of a rabbits diet should be minimal – no more than 5% of its daily ration. 80% should be a choice of different good quality hays and 10-15% can be fresh food such as lovely herbs (basil, mint, coriander (cilantro) and parsley) or non root vegetables such as cabbage and kale (be aware that gassy veg for us can also be gassy veg for bunnies).

Lastly, all dietary changes should be made gradually over a 10 day period to minimise the risk of dietary upset.

More rabbit diet info can be found at RWAF, Bunny Lovers Unite, Camp Nibble (courtesy of Save a Fluff) and House Rabbit Society for anyone in USA.

 

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